Improvement in building-blocks for chimneys



UNITED STATES PATENT OFFICE JEREMIAH I. EDSON, OF DIGHTON,MASSACHUSETTS.4

IMPROVEMENT INBUILDING-BLOCKS FOR CHIMNEYS.

Specification forming part of Letters Patent No. 149,209, dated March31, 1874; application led v January 30, 1874.

To all whom it may concern Be it known that I, JEREMIAH P. EDsoN, ofDighton, Bristol county, State of Massachusetts, have invented anImproved Chimney Building Brick or Block, of which the fol lowing is' aspecification:

This invention relates to the erection ofthe outer chimneys tobuildings, and to bricks or blocks to be used in the course of theirerection, for the purpose of covering the joint or seam between thechimney and roof, to shield and protect such joint against the passageof water through it, thereby dispensing with the metal covering orsheathing as ordinarily used for such purpose. The invention consists inthe formation of bricks or blocks with a projection from their face orfaces, of such form that, in the erection of a chimney, by a properlaying of said bricks, together with bricks of ordinary construction, acontinuous ribV or projection can be formed from the brick projectionsabout the chimney at the joint between it and the roof, which willcorrespond in direction to that of the said joint, making a completecover thereto, and protection against the passage of water through it.

The drawings of the accompanying plate fully illustrate my invention.

In the plate, Figure l is an elevation of a chimney, illustrating on theone chimney the ilnproved bricks or blocks in connection wlth threedi'iierent inclinations or forms of roof.

' Fig. 2 is a horizontal section in plane of line w fr, Fig. l. Figs. 3,4, and 5, respectively, are plan, face, and end views of a brick havinga projection or rib suitable inthe erection of a chimney to produce acontinuous rib or projection along the chimney, at an angle to theheight of the chimney. Fig. 6 is a face view of a brick, showing aprojection or rib suitable to cap the two angular lines of direction ofa continuous rib produced by bricks shown in Figs. 3, 4, and 5, whenused in connection with a gable roof. Figs. 7, S, and 9, respectively,are a plan and two end views of a brick hav- .ing a projection or ribsuitable to continue l1, and 12, respectively, are a plan,cross-section, and face view of a brick having its projection or rib'constructed with an inclination,

as and for a purpose to be hereinafter del scribed.

In the drawings, A represents the outer portion of a chimney to abuilding. This chimney is shown as built of brick, laid in courses, B,as usual, and in connection with it the heavy dotted lines C, D, and Eshow three different forms of roofs. E are bricks corresponding inlength, width, and thickness to ordinary bricks, such as shown in thecourses B at a a a, Sac. These bricks F, however, differ from theordinary bricks, and this difference consists in forming them with aprojection or rib, b. The projection or rib b for the several bricks F,which run from l to l in the several instances, as marked in Fig. l, ison the face of the bricks, and forms within the boundary-lines of theface a parallelogram, which has its opposite sides parallel with eachother. rlwo ot' these opposite sides correspond with the upper and lowersides or surfaces of the brick, giving thus a thickness to theprojection equal to the thickness of the brick, and the other two ofthese opposite sides run angularly to the length and thickness of thebrick, extending the one from one corner of one edge directly to a pointmidway of the length of the brick at the other edge, and the other sidesimilarly to the rst side, running, however, from that corner at theedge which the first side met, as stated, which last corner liesdiagonally with the corner iirst referred to of the brick. The severalribs b project equally from the face of the bricks, and in the wholetheir projection has the parallelogram form described. For a brick ofordinary size, the extent ofprojection should be at least one inch. Theprojection or rib b of the brick F2 is, as above, on the face of thebrick; but, in lieu of being in the form of a parallelogram, it is inthe forni of a triangle, and this triangle has 011e of its sides at oneedge of the face to the brick, and its two other sides extended fromeach corner of such edge to the opposite edge of the face, intersectingeach other midway of the length of the face. The remainder of the bricksF, viz., those shown at F3, have a projection or rib, b, both alongtheir face and at onc end. This projection along the face of the' brickstands in its projection at an angle of inclination thereto, its twoinclined faces meeting the one side of the brick, and the other sidethereof, and along the end ot' the brick this angular projection iscontinued by the eXtension of one of its inclined faces in a diagonalline to one corner of the end. The bricks F, F2, and F3 are to be usedin conjunction with bricks ot' ordinary form, and in their use they areto be laid up as shown in Fig. l. The several kinds of bricks F, F2, andF3 are necessary to make a continuous rib or projection, b, at theinclines of the joint of the chimney with the roof, and only the bricksF3 to make a continuous rib or projection at the horizontal line ofjoint of the chimney with the roof'. By this projection or rib thc jointof chimney with the roof is covered and sheathed against the passage ot'Water through it. As the inclination of the roof-line is slight, it isnecessary that the bricks F and F2 be longer than ordinary bricks. Inthe several Figs. 10, ll, and 12, the projection or rib b of the bricksF F2 F3 is shown as constructed with an incline, f, toward the face ofthe brick, making of the rib a gutter for the ow of Water along the rib.When this incline is given to the rib b, the rib must project at its endg beyond the rib or projection b. The bricks F F2 F3 may be molded likeordinary bricks, or they may be otherwise suitably formed, and,furthermore, the shape of the projection or rib b herein described maybe Varied to suit different forms of roofs. The bricks F, F2, and F3require to be rights and lefts in order to be generally adapted to theirpurpose.

Having thus described my invention, what I claim, and desire to secureby Lettersl Patent, is-

A brick or block for building chimneys, formed with the rib orprojection b, as herein shown, so that when the bricks are laid together, in connection With ordinary bricks, a continuous projection orrib is formed about the chimney at its junction with the roof, in themanner and for the purpose herein set forth.

rlhe above specification of my invention signed by me this 15th day ofDecember, A. D. 187 3.

JEREMIAH P. E'DsoN.

Witnesses:

EDWIN W. BROWN, ALBERT W. BROWN.

